#183565#183565

#183565 is a dark, moderate blue. Relative luminance 0.037; OKLCH L 33.5% C 0.092 H 259.9°. Best body text is #FFFFFF at 12.10:1 contrast (WCAG AA passes).

Color values

HEX	#183565
RGB	rgb(24, 53, 101)
HSL	hsl(217, 62%, 25%)
HSV	hsv(217, 76%, 40%)
CMYK	cmyk(76.2%, 47.5%, 0%, 60.4%)
CIE-LAB	lab(22.58, 7.58, -31.48)
CIE-LCH	lch(22.58, 32.38, 283.55°)
OKLab	oklab(33.5% -0.016 -0.0901)
OKLCH	oklch(33.5% 0.092 259.9)
XYZ	xyz(3.9979, 3.6796, 12.8089)
Luminance	0.0368 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#183565 #654818

analogous

#185C65 #183565 #221865

triadic

#183565 #651835 #356518

tetradic

#183565 #65185C #654818 #186522

square

#183565 #65185C #654818 #186522

split-complementary

#183565 #652218 #5C6518

monochromatic

#060D19 #0C1B34 #183565 #244F96 #3069C8

Accessibility & contrast

On white

12.10

#183565 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.74

#183565 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #183565

12.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##183565	#FFFFFF	#000000	##FFFFFF
##183565	1.00	12.10	1.74	12.10
#FFFFFF	12.10	1.00	21.00	1.00
#000000	1.74	21.00	1.00	21.00
##FFFFFF	12.10	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1D3A67

Deuteranopia (green-blind)

#0E3364

Tritanopia (blue-blind)

#004048

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #183565;
/* rgb */ color: rgb(24, 53, 101);
/* oklch */ color: oklch(33.5% 0.092 259.9);

Tailwind

colors: {
  custom: {
    50: '#606b91',
    500: '#183565',
    950: '#000000',
  },
}

SCSS

$custom: #183565;
$custom-light: #606b91;
$custom-dark: #000000;

JSON

{
  "hex": "#183565",
  "rgb": {
    "r": 24,
    "g": 53,
    "b": 101
  },
  "hsl": {
    "h": 217.403,
    "s": 61.6,
    "l": 24.51
  },
  "oklch": {
    "l": 0.33497,
    "c": 0.09152,
    "h": 259.9
  },
  "luminance": 0.0368
}

Semantic roles & 50–950 ramp

primary

#183565

secondary

#9B783E

accent

#A843E5

background

#F6F6F8

surface

#EBEBF0

border

#C6C6CB

text

#05060D

muted

#7A7A7D

Preview Lab

Preview with #183565

Body copy rendered with the generated semantic roles for this colour.

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